521241324 has 12 divisors (see below), whose sum is σ = 1216229784. Its totient is φ = 173747104.

The previous prime is 521241319. The next prime is 521241337. The reversal of 521241324 is 423142125.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 521241294 and 521241303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21718377 + ... + 21718400.

It is an arithmetic number, because the mean of its divisors is an integer number (101352482).

Almost surely, 2^521241324 is an apocalyptic number.

It is an amenable number.

521241324 is an abundant number, since it is smaller than the sum of its proper divisors (694988460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521241324 is a wasteful number, since it uses less digits than its factorization.

521241324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43436784 (or 43436782 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 521241324 is about 22830.7101072218. The cubic root of 521241324 is about 804.7845180230.

Adding to 521241324 its reverse (423142125), we get a palindrome (944383449).

The spelling of 521241324 in words is "five hundred twenty-one million, two hundred forty-one thousand, three hundred twenty-four".